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BUILDING STRONGSM
2/8/2012 1
RiverWare for Planning and Realtime Operations at
Libby Dam on the Kootenai River
- Adam Price -
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• Bonner’s Ferry Flood Control • BiOps • Modular Refill Guidance (VarQ) • Forecast Time Series
Facets
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Bonner’s Ferry Flood Control
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Bonner’s Ferry Flood Control
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BiOps • Seasonal minimum flows for sturgeon, bull
trout and salmon. • “Sturgeon Pulse”
– Stepped increase in flows in June-July – Variable start date. – Shape/peak/volume forecast dependent – Shape dependent on prior conditions. – Peak also elevation dependent (PHC + spill)
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Sturgeon Pulse “If these conditions are met, increase discharge from Libby Dam to 15
kcfs for 3 days, followed by discharge of 20 kcfs for 3 days, discharge of full powerhouse capacity for 3 days, then maintain peak discharge of PHC + spill of up to 10 kcfs for 7 days……reduce discharge to PHC for 4 days, reduce discharge to 20 kcfs for at least 3 days... If modeled summer flat flow is at least 15 kcfs, maintain 17 kcfs until volume is exhausted….” -- 2011 Libby Operation
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Modular Refill Guidance (VarQ)
StorageFor Adjustment +=VQInitVQNew
DurationFor Adjustment−=VQNewVQFinal
AugWSF-AprCurrent on basedion Interpolat=VQInit
DurationAdjStorage ∆
=
[ ]PriorDaysnNewDuratio
PriorDaysQoutVQNewAdjDur Prior
−−
=*
Space ActualSpace dReq' −=∆
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Modular Refill Guidance (VarQ)
PriorDaysnNewDuratio
PriorDaysQoutDuration
VQInit
DurationVQInitVQFinal
Prior
−
−
∆
−+
∆
−=*
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• Drawdown, refill, sturgeon operations, minimum flows all vary with current timestep’s April – August forecast.
• VarQ refill also depends in part on what the forecast was on a specific date in the past.
• Refill may be declared retroactively
Forecast Time Series
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• Drawdown, refill, sturgeon operations, minimum flows all vary with current timestep’s April – August forecast.
• VarQ refill also depends in part on what the forecast was on a specific date in the past.
• Refill may be declared retroactively
Forecast Time Series
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2011 Libby WSF and Flood Control Elevations
Solution?
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• Solution:
Forecast Time Series
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What an average year may look like for Libby Dam regulation
0
10000
20000
30000
40000
50000
60000
70000
80000
1-Oct 31-Oct 30-Nov 30-Dec 29-Jan 28-Feb 30-Mar 29-Apr 29-May 28-Jun 28-Jul 27-Aug 26-Sep
Date
Flow
(cfs
)
2250.02260.02270.02280.02290.02300.02310.02320.02330.02340.02350.02360.02370.02380.02390.02400.02410.02420.02430.02440.02450.02460.0
Elev
atio
n (ft
)
Inflow Regulated Outflow URC Elev Regulated Elevation
Draw dow n Period from Nov through SoR
VarQ Sturgeon
Draft to 2449 ft Sept 30th
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What an average year may look like for Libby Dam regulation
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Riverware Implementation
Excel Input File Creator • Run Type • Realtime (Single trace, 0-2 weeks)
• Seasonal Planning (Multiple Traces)
• Policy Studies ( e.g. 2010 Level hydrographs)
• Optional forecast fluctuation
• Optional filtering weather years
• Exports to new excel file
Riverware Processing • Realtime model & planning/study model
• Eventually automatically running single trace overnight
Output to import • Pre-configured analysis and graphs
• Easy sharing with non-RW users
• Study parameters and data preserved
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Questions/Comments/Suggestions?